I added the correct definition, but then came across this which seems like it needs to be here:

Pants

In place of any word deemed innapropriate or foul, use the word "pants". This allows you to get your intentions across, but allows for some humor and a clean mouth as well. Grandma panties is derivitive of pants and is a very bad insult that can mean whatever you wish it to mean, as long as it was originally supposed to be innapropriate.
1. Go to pants!
2. Pants you!
3. Pants off!
4. I'm getting pantsed.
5. You're a pants!
6. I just took a huge pants.
7. Pants, you lookin' gooood!
8. That was pantsing stupid!
9. You're a pants pantsing pants who pantses every pantsing pants that pantsing comes your pantsing way, therefore you and your pantsing pants should go to pants!
10. You're a pair of grandma panties!